import React, { useState, useEffect } from 'react';
import { Button, Dropdown, Space } from 'antd';
import { FixedSizeList as List } from 'react-window';  // 导入react-window的List组件
import '../../style/main.css';
import '../../style/kuangjia.css';
import { useGlobalContext } from '../GlobalContext';
import SongListlist from './songListlist';

const MusicSearch = ({ songs }) => {
  const {
    userId, setUserId,
    favsongrefresh,
    setFavsongRefresh,
    playerlistfresh, setPlayerlistRefresh,
    currentIndex, setCurrentIndex,
    favsongListrefresh, setFavSonglistRefresh,
    playingDatalength, setPlayingDatalength, } = useGlobalContext();
  const [songListlistvisible, setSongListlistvisible] = useState(false)
  const formatDuration = (duration) => {
    const minutes = Math.floor(duration / 60000);
    const seconds = ((duration % 60000) / 1000).toFixed(0);
    return minutes + ":" + (seconds < 10 ? '0' : '') + seconds;
  };

  const handleDeleteAll = async () => {
    try {
      const response = await fetch('http://localhost:8088/playing/deleteall', {
        method: 'DELETE',
        headers: { 'Content-Type': 'application/json' },
      });

      if (!response.ok) {
        throw new Error('Failed to delete all songs');
      }
      // setPlayerlistRefresh(!playerlistfresh);

    } catch (error) {
      console.error('Error deleting all songs:', error);
    }
    // setCurrentIndex(0)
  };

  const handleSongPlayClick = async (index) => {
    try {
      // 检查数据库是否存在数据
      const checkResponse = await fetch("http://localhost:8088/playing", {
        method: "GET",
        headers: {
          "Content-Type": "application/json",
        },
      });
      const playingData = await checkResponse.json();
      if (playingData.data.length > 0) {
        // 如果存在数据，先清空播放列表
        await handleDeleteAll();
      }

      // 添加当前歌单到播放列表
      const response = await fetch("http://localhost:8088/playing/all", {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(songsState),
      });
      if (!response.ok) {
        throw new Error("Failed to update playing list");
      }

      // 设置全局变量和刷新状态
      setCurrentIndex(index);
      setPlayerlistRefresh(!playerlistfresh);
      console.log("Successfully added songs to the playing list");
    } catch (error) {
      console.error("Error handling song list update: ", error);
    }
  };

  const [songsState, setSongsState] = useState(songs);

  const checkFavorStatus = async (songId) => {
    try {
      const response = await fetch(`http://localhost:8088/favor/${songId}`);
      const data = await response.json();
      if (data.code === 200 && data.data !== null) {
        return true;
      } else {
        return false;
      }
    } catch (error) {
      console.error("Error checking favor status: ", error);
      return false; // 默认未收藏
    }
  };

  useEffect(() => {
    const fetchFavorStatus = async () => {
      const updatedSongs = await Promise.all(
        songsState.map(async (song) => {
          const isFavorited = await checkFavorStatus(song.musicId);
          return { ...song, liked: isFavorited };
        })
      );
      setSongsState(updatedSongs);
    };
    fetchFavorStatus();
  }, []);

  const handleLikeClick = async (songId) => {
    const song = songsState.find((s) => s.musicId === songId);
    const newLikedStatus = !song.liked;

    // 更新状态
    setSongsState((prevSongs) =>
      prevSongs.map((s) =>
        s.musicId === songId ? { ...s, liked: newLikedStatus } : s
      )
    );

    const songData = {
      musicId: song.musicId,
      musicName: song.musicName,
      artName: song.artName,
      album: song.album,
      coverUrl: song.coverUrl,
      playUrl: song.playUrl,
      lyricUrl: `http://localhost:3000/lyric?id=${song.musicId}`,
      dt: song.dt,
      liked: newLikedStatus,
      userId,
    };

    try {
      if (newLikedStatus) {
        // 收藏操作 (POST 请求)
        const response = await fetch("http://localhost:8088/favor", {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
          body: JSON.stringify(songData),
        });

        if (!response.ok) {
          throw new Error("Failed to update favor status");
        }
        setFavsongRefresh(!favsongrefresh)

        console.log("Successfully added song to favorites:", songId);
      } else {
        // 取消收藏操作 (DELETE 请求)
        const response = await fetch(`http://localhost:8088/favor/${songId}`, {
          method: "DELETE",
        });

        if (!response.ok) {
          throw new Error("Failed to remove song from favorites");
        }
        setFavsongRefresh(!favsongrefresh)

        console.log("Successfully removed song from favorites:", songId);
      }
    } catch (error) {
      console.error("Error handling favor request: ", error);
    }
  };

  //测试窗口开关
  const [songsend, setSongsend] = useState({})
  const handleopenclick = (songId) => {
    setSongListlistvisible(true);
    const song = songsState.find((s) => s.musicId === songId);
    setSongsend({
      musicId: song.musicId,
      musicName: song.musicName,
      artName: song.artName,
      album: song.album,
      coverUrl: song.coverUrl,
      playUrl: song.playUrl,
      lyricUrl: `http://localhost:3000/lyric?id=${song.musicId}`,
      dt: song.dt,
      liked: song.liked,
      userId,
    })
  }
  const handlesongListlisVisible = (visible) => {
    setSongListlistvisible(visible);
  }

  const handeladdSongTolist = async (songId) => {
    const song = songsState.find((s) => s.musicId === songId);
    const songPost = {
      musicId: song.musicId,
      musicName: song.musicName,
      artName: song.artName,
      album: song.album,
      coverUrl: song.coverUrl,
      playUrl: song.playUrl,
      lyricUrl: `http://localhost:3000/lyric?id=${song.musicId}`,
      dt: song.dt,
      liked: song.liked,
      songIndex: playingDatalength + 1
    };
    try {
      const response = await fetch("http://localhost:8088/playing", {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(songPost),
      });

      if (!response.ok) {
        throw new Error("Failed to update favor status");
      }
      setPlayerlistRefresh(!playerlistfresh)
    } catch (error) {
      console.error("Error handling favor request: ", error);
    }
  }

  const items = (songId) => [
    {
      key: '1',
      label: (
        <a
          href="#"
          onClick={(e) => {
            e.preventDefault(); // 阻止默认行为
            const song = songsState.find((s) => s.musicId === songId); // 获取当前歌曲
            if (song.liked) {
              alert("歌曲已收藏");
            } else {
              handleLikeClick(song.musicId); // 执行收藏/取消收藏操作
            }
          }}
        >
          收藏
        </a>
      ),
    },
    {
      key: '2',
      label: (
        <a target="_blank" rel="noopener noreferrer" href="https://www.aliyun.com">
          下载
        </a>
      ),
    },
    {
      key: '3',
      label: (
        <a onClick={() => { handleopenclick(songId) }}>
          添加到歌单
        </a>
      ),
    },
    {
      key: '4',
      label: (
        <a onClick={() => handeladdSongTolist(songId)}>
          添加到播放
        </a>
      ),
    },
  ];

  // const renderRow = ({ index, style }) => {
  //   const song = songsState[index];

  // };

  return (
    <div className="search_songlist">
      <div className="serch_nav">
        <div>歌名/歌手</div>
        <div className="serch_nav_right">
          <div>专辑</div>
          <div>时长</div>
        </div>
      </div>
      <ul>
        {/* <List
          height={window.innerHeight - 120} // 列表可视区域的高度
          itemCount={songsState.length} // 数据的数量
          itemSize={50} // 每个列表项的高度
          width="100%" // 列表宽度
        >
          {renderRow}
        </List> */}
        {songsState.map((song, index) => {
          return (
            <li key={song.musicId} onDoubleClick={() => handleSongPlayClick(index)}>
              <div className="hideicon">
                <i className="ri-play-fill"></i>
              </div>
              <div className="search_songlist_left">
                <div className="song_information">
                  <img src={song.coverUrl} alt={song.musicName} />
                  <div className="song_name">
                    <span id="songname">{song.musicName}</span>
                    <span id="singer">{song.artName}</span>
                  </div>
                </div>
                <div className="dowhat">
                  <i
                    className={song.liked ? "ri-heart-3-fill" : "ri-heart-3-line"}
                    onClick={(e) => {
                      e.stopPropagation();
                      handleLikeClick(song.musicId);
                    }}
                  ></i>
                  <div className="menu">
                    <Space direction="vertical">
                      <Space wrap>
                        <Dropdown
                          menu={{ items: items(song.musicId) }}
                          placement="topLeft"
                          trigger={['click']}
                        >
                          <i className="ri-menu-4-line"></i>
                        </Dropdown>
                      </Space>
                    </Space>
                  </div>
                </div>
              </div>
              <div className="search_songlist_right">
                <div id="songalbum">{song.album}</div>
                <div id="songduration">{formatDuration(song.dt)}</div>
              </div>
            </li>
          );
        })}
      </ul>
      {songListlistvisible && <SongListlist onviblechange={handlesongListlisVisible} songsend={songsend} />}

    </div>
  );
};

export default MusicSearch;
